Whalesbook
Regulatory Pressure Hits Trading Volumes
The Indian equity markets navigated a complex financial year 2025-26, marked by a noticeable slowdown in trading activity. Cash market turnover experienced a 6% year-on-year contraction, averaging ₹1.13 trillion daily across major exchanges. This slowdown was partly due to tighter regulations, such as new rules for weekly options expiries and stricter margin requirements. The market's poor performance also contributed, with the Nifty50 falling 5.1% and the Sensex down 7.1% in FY26. Market insiders expect trading volumes to soften further due to ongoing investor caution. A significant increase in Securities Transaction Tax (STT) from April 1, 2026, raises costs for futures (0.02% to 0.05%) and options premiums (0.1% to 0.15%). This hike, which makes futures about 40% of trading costs compared to options, is pushing traders towards options strategies.
Divergent Market Trends Emerge
While cash market turnover declined, the overall derivatives segment saw a modest 4.6% rise in average daily turnover, reaching ₹447 trillion. However, this figure hides significant weakness, especially an 18% drop in futures and options activity on the National Stock Exchange (NSE). This split shows a market in transition, with regulations and costs leading to different outcomes. The Bombay Stock Exchange (BSE) gained ground, increasing its market share from 38% in September 2025 to 44% by March 2026, reflecting a competitive shift among exchanges. Global geopolitical tensions and trade policy shifts also affected market sentiment in FY26, though brief rallies occurred with de-escalation of conflicts or positive foreign investor flows.
Traders Shift to Higher-Value Trades
A key behavioral shift saw average trade sizes increase across exchanges. Average trade size grew on the NSE to ₹31,545 from ₹29,046, and on the BSE to ₹22,822 from ₹18,720. This indicates a shift towards higher-value trades, potentially meaning fewer small retail traders are active or traders are making fewer, more decisive trades. This trend is supported by high retail trader losses, with about 91% experiencing net losses in equity derivatives in FY25, similar to FY24. India's derivatives market, the world's largest by contract volume (NSE and BSE ranked first and second), faces scrutiny over these risk concentrations.
Future Challenges: Leverage, Costs, Competition
Several structural challenges loom over future trading volumes. Upcoming Reserve Bank of India (RBI) norms on bank guarantees, now effective July 1, 2026, will tighten leverage for market intermediaries. With about 35% of industry margins backed by bank guarantees, HDFC Securities estimates an 8-10% drop in derivatives volumes. Devesh Agarwal of IIFL Capital predicts a 10-15% fall as leverage tightens. The STT hike, making futures 40% of trading costs versus 8-9% for options, accelerates a shift toward options. This regulatory environment, along with high retail losses and competition from other Asian markets, may reduce India's appeal for short-term foreign investment in derivatives. India's stock market turnover ratio, at 65.23% in 2024, remains significantly above the global average, suggesting a potentially unsustainable level of churn, especially under tighter financial conditions.
Market Outlook Remains Cautious
Market participants expect trading volumes to moderate further this fiscal year. Analysts predict the combined effect of higher STT and tighter leverage, including the RBI's mandate for fully secured credit for intermediaries from July 1, 2026, will lower effective leverage and limit aggressive trading. Though India's derivatives market has grown rapidly, fueled by retail participation, recent regulations aim to curb excessive speculation and systemic risk. The shift towards higher-value, less frequent trades, combined with competitive gains among exchanges, defines the evolving dynamics of Indian capital markets as they adapt to new cost and leverage realities.